Related Experiment Video
Updated: Sep 26, 2026

A Pacing-Controlled Procedure for the Assessment of Heart Rate-Dependent Diastolic Functions in Murine Heart Failure Models
Published on: July 21, 2023
[Treatment for diastolic failure]
Koichiro Kinugawa1, Toshiyuki Takahashi, Ryozo Nagai
1Department of Cardiovascular Medicine, University of Tokyo.
Insights
Diastolic dysfunction, a key heart failure mechanism, lacks established treatments. Angiotensin II blockade shows promise for treating diastolic failure by targeting myocardial hypertrophy and fibrosis.
Area of Science:
- Cardiology
- Heart Failure Research
- Pharmacology
Background:
- Diastolic dysfunction is a significant contributor to heart failure.
- Myocardial hypertrophy and fibrosis are primary causes of diastolic dysfunction.
- Angiotensin II is implicated as a key growth factor in cardiac remodeling.
Purpose of the Study:
- To review the pathophysiologic basis of diastolic dysfunction.
- To discuss potential treatments for diastolic failure.
- To explore the role of Angiotensin II blockade in managing diastolic dysfunction.
Main Methods:
- Literature review of pathophysiologic mechanisms.
- Analysis of current research on diastolic dysfunction causes.
- Examination of therapeutic strategies targeting Angiotensin II.
Main Results:
- Angiotensin II is identified as a critical factor in myocardial hypertrophy and fibrosis.
- Angiotensin II blockade emerges as a promising therapeutic approach.
- Ongoing randomized studies are evaluating Angiotensin II type 1 receptor blockers.
Conclusions:
- Understanding diastolic dysfunction's pathophysiology is crucial for treatment development.
- Targeting Angiotensin II pathways offers a potential strategy for diastolic failure.
- Further clinical trials are needed to establish effective treatments for diastolic dysfunction.
Abstract:
Diastolic dysfunction is now recognized as an important mechanism of heart failure, but treatment for diastolic failure has not yet been established. Many of causes for diastolic dysfunction have been related to myocardial hypertrophy or fibrosis. Until recently, angiotensin II has been proposed as one of important growth factors that lead into hypertrophy and fibrosis. Angiotensin II blockade, therefore, is a promising candidate for the treatment of diastolic failure. Two randomized studies with angiotensin II type 1 receptor blocker are under way. This review will describe the pathophysiologic basis for diastolic dysfunction, and discuss the possible treatments for diastolic failure referring to the recently-proposed two guidelines.
Related Concept Videos
Heart Failure V: Medical Management
Heart Failure VI: Adjunct Therapies
Cardiomyopathy II: Dilated Cardiomyopathy
Cardiomyopathy V: Interprofessional Care
Heart Failure IV: Classification and Diagnostic Evaluation
Heart Failure II: Pathophysiology
